Agavi\Date\SimpleTimeZone::getOffsetIIIIIIII()

Complexity

Conditions	28
Paths	6

Size

Total Lines	59
Code Lines	30

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function getOffsetIIIIIIII($era, $year, $month, $day, $dayOfWeek, $millis, $monthLength, $prevMonthLength)
    {
        if (($era != GregorianCalendar::AD && $era != GregorianCalendar::BC)
            || $month < DateDefinitions::JANUARY
            || $month > DateDefinitions::DECEMBER
            || $day < 1
            || $day > $monthLength
            || $dayOfWeek < DateDefinitions::SUNDAY
            || $dayOfWeek > DateDefinitions::SATURDAY
            || $millis < 0
            || $millis >= DateDefinitions::MILLIS_PER_DAY
            || $monthLength < 28
            || $monthLength > 31
            || $prevMonthLength < 28
            || $prevMonthLength > 31
        ) {
            throw new \InvalidArgumentException('One of the supplied parameters is out of range');
        }

        $result = $this->rawOffset;

        // Bail out if we are before the onset of daylight savings time
        if (!$this->useDaylight || $year < $this->startYear || $era != GregorianCalendar::AD) {
            return $result;
        }

        // Check for southern hemisphere.  We assume that the start and end
        // month are different.
        $southern = ($this->startMonth > $this->endMonth);

        // Compare the date to the starting and ending rules.+1 = date>rule, -1
        // = date<rule, 0 = date==rule.
        $startCompare = self::compareToRule($month, $monthLength, $prevMonthLength, $day, $dayOfWeek,
            $millis, $this->startTimeMode == self::UTC_TIME ? -$this->rawOffset : 0,
            $this->startMode, $this->startMonth, $this->startDayOfWeek, $this->startDay, $this->startTime);
        $endCompare = 0;

        /* We don't always have to compute endCompare.  For many instances,
         * startCompare is enough to determine if we are in DST or not.  In the
         * northern hemisphere, if we are before the start rule, we can't have
         * DST.  In the southern hemisphere, if we are after the start rule, we
         * must have DST.  This is reflected in the way the next if statement
         * (not the one immediately following) short circuits. */
        if ($southern != ($startCompare >= 0)) {
            $endCompare = self::compareToRule($month, $monthLength, $prevMonthLength, $day, $dayOfWeek, $millis,
                $this->endTimeMode == self::WALL_TIME ? $this->dstSavings : ($this->endTimeMode == self::UTC_TIME ? -$this->rawOffset : 0),
                $this->endMode, $this->endMonth, $this->endDayOfWeek, $this->endDay, $this->endTime);
        }

        // Check for both the northern and southern hemisphere cases.  We
        // assume that in the northern hemisphere, the start rule is before the
        // end rule within the calendar year, and vice versa for the southern
        // hemisphere.
        if ((!$southern && ($startCompare >= 0 && $endCompare < 0)) || ($southern && ($startCompare >= 0 || $endCompare < 0))) {
            $result += $this->dstSavings;
        }

        return $result;
    }